Robust superhydrophobic fabric via UV-accelerated atmospheric deposition of polydopamine and silver nanoparticles for solar evaporation and water/oil separation

Zhang, Hongliang; Ou, Junfei; Fang, Xinzuo; Lei, Sheng; Wang, Fajun; Li, Changquan; Li, Wen; Hu, Yating; Amirfazli, Alidad; Wang, Peng

doi:10.1016/j.cej.2021.132539

Cited by 76 publications

(26 citation statements)

References 83 publications

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“…Fortunately, biopolymers such as polydopamine (PDA) play an important role in inhibiting galvanic corrosion and repairing GO defects . PDA emanates as a versatile chemical modifier with strong adhesion to the various materials due to catechol and amine hydrogen bonding . This binding affinity can not only compensate for the defects of GO through π–π bond interactions but also repair damaged areas through chelation with metal ions .…”

Section: Introductionmentioning

confidence: 99%

“…20 PDA emanates as a versatile chemical modifier with strong adhesion to the various materials due to catechol and amine hydrogen bonding. 21 This binding affinity can not only compensate for the defects of GO through π−π bond interactions but also repair damaged areas through chelation with metal ions. 22 In addition, PDA can be used to construct photothermal self-healing superhydrophobic coatings due to its strong light absorption ability.…”

Section: Introductionmentioning

confidence: 99%

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Robust Self-Healing Graphene Oxide-Based Superhydrophobic Coatings for Efficient Corrosion Protection of Magnesium Alloys

Xue

et al. 2022

ACS Appl. Mater. Interfaces

116

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A self-healing coating possesses a broad application prospect in the metal corrosion protection area due to its pleasurable performance. By far, despite a great deal of research studies that have been reported in this field, it is still a challenge to construct an intrinsic self-healing surface that can repair a damaged structure and restore superhydrophobicity simultaneously. Herein, a self-healing superhydrophobic coating was fabricated by combining polydopamine (PDA)-functionalized Cu 2+ -doped graphene oxide (GO), octadecylamine (ODA), and polydimethylsiloxane (PDMS), which can recover the superhydrophobicity and microstructure of the coating after chemical/physical damage. The as-prepared self-healing coating displayed excellent liquid repellency with a water contact angle of 158.2 ± 2°and a sliding angle of 4 ± 1°, which endowed the Mg alloy with excellent anticorrosion performance. Once the coating is scratched, the local damaged structure will be automatically repaired through the chelation of catechol and Cu 2+ . Also, the superhydrophobicity of the coating can be rapidly restored under 1-sun irradiation even after being etched by O 2 plasma. Furthermore, the as-fabricated self-healing coating still exhibited excellent corrosion protection against a magnesium alloy after immersion in 3.5 wt % NaCl solution for 30 days, which was attributed to the efficient repair of defects in GO by PDA through π−π interactions and the inherent chemical inertia of PDMS. Moreover, the as-fabricated self-healing coating also exhibited favorable mechanical stability, chemical durability, and weather resistance. This study paves a fresh insight into the design of robust self-healing coatings with huge application potential.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Robust Self-Healing Graphene Oxide-Based Superhydrophobic Coatings for Efficient Corrosion Protection of Magnesium Alloys

Xue

et al. 2022

ACS Appl. Mater. Interfaces

116

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“…Furthermore, it exerted outstanding evaporation performance in a hostile environment. Zhang et al 172 reported a novel strategy to promote the rapid atmospheric deposition of dopamine (PDA) and Ag NPs on fabrics under UV irradiation and was modified by dodecylmercaptan (DT) to obtain superhydrophobicity. PDA and Ag NPs exhibit outstanding photothermal properties, which enabled the fabric to collect solar energy to promote the local evaporation of seawater.…”

Section: Applications Of Efsms In the Fields Of Environment Energy An...mentioning

confidence: 99%

Research progress on eco-friendly superhydrophobic materials in environment, energy and biology

peng

Zhang

et al. 2022

Chem. Commun.

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“…Particularly, the carbon atom content on the surface of the CA-Fe-SH-PET fabric increased from 74.8% to 85.03%, and new elements (sulfur atom content 3.68%) appeared, which further indicates that the enol click chemical reaction occurred on the surface of the fabrics. The long carbon chain material was successfully grafted onto the polyester fabric, reducing the surface energy of the fabric [24][25][26][27][28].…”

Section: Surface Morphology and Chemical Structure Characterizationmentioning

confidence: 99%

Fabrication of Superhydrophobic and Light-Absorbing Polyester Fabric Based on Caffeic Acid

Xie

Yuan

et al. 2022

Polymers

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Caffeic acid (CA) was treated on the surface of polyester fabric (PET), and Fe2+ was used as an intermediate to form chelates with CA to increase the roughness of the polyester surface. With the addition of n-octadecyl mercaptan (SH), the mercapto group reacted with the carbon–carbon double bond of CA on the PET surface through enol click chemical reaction. Meanwhile, CA was polymerized under UV radiation, and thus CA-Fe-SH-PET was prepared. The introduction of SH with a long carbon chain reduced the surface energy of the PET, in order to endow the polyester fabric with a superhydrophobic/lipophilic function. Combined with XPS and FTIR tests, the new carbon–carbon double bond’s binding energy and vibration peak were found on the fabric surface, indicating that CA was adsorbed on the PET fabric’s surface. After adding SH, the double bond disappeared, demonstrating that SH and CA occurred a click chemical reaction and were grafted onto the PET fabric’s surface. The water contact angle (WCA) of CA-Fe-SH-PET was about 156 ± 0.6°, and the scrolling angle (SA) was about 3.298°. The results showed that the modified polyester had a robust superhydrophobic stability in washing, mechanical friction, sun aging, seawater immersion, organic reagent, and acid-base erosion derived from the good adhesion of polymerized CA (PCA). At the same time, the modified polyester fabric had good self-cleaning, antifouling, and oil–water separation performance. It was found that the CA-Fe-SH-PET fabric had unique photothermal conversion characteristics, which can convert the absorbed ultraviolet light into thermal energy, providing a local warming effect due to rapid heating and improving the transmission speed of heavy oil (engine oil and diesel). The CA-Fe-SH-PET fabric can further prevent the transmission of ultraviolet rays, and the UV resistance of CA-Fe-SH-PET fabric is far higher than the UV resistance standard. The preparation method is simple, fast, efficient, and environmentally friendly, and it has better a potential application value in the oil–water separation field.

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Robust superhydrophobic fabric via UV-accelerated atmospheric deposition of polydopamine and silver nanoparticles for solar evaporation and water/oil separation

Cited by 76 publications

References 83 publications

Robust Self-Healing Graphene Oxide-Based Superhydrophobic Coatings for Efficient Corrosion Protection of Magnesium Alloys

Robust Self-Healing Graphene Oxide-Based Superhydrophobic Coatings for Efficient Corrosion Protection of Magnesium Alloys

Research progress on eco-friendly superhydrophobic materials in environment, energy and biology

Fabrication of Superhydrophobic and Light-Absorbing Polyester Fabric Based on Caffeic Acid

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